F1 does not contain all of ingredients of Recipes in F2.

[farboda]

For instance, the recipse of Mango Lassi/smoothie in F2 contains these ingredients:
GHZ654L7 (Brown Sugar)
7NS2DSKS (Mango)
JWML5PLS (Yogurt)
PXTR53Z5 (Water)
QCSPKM5N (Ice Cubes)

But in F1 file we don't have "QCSPKM5N (Ice Cubes)".

So if we use all of the ingredients, the return value would be null. but if we don't use QCSPKM5N (Ice Cubes) then the script return the correct recipe of (2222B2RC) Mango Lassi/smoothie.